[easytag] (4 commits) Non-fast-forward update to branch wip/core-refactoring

[David King <davidk src gnome org>]

The branch 'wip/core-refactoring' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  bdc4aa6... Avoid locale-sensitive field name reading for Ogg
  30f7303... Use strncmp() when case is not a factor
  a2e6189... Use g_ascii_strcasecmp() for ID3v2.4 field names
  4b9355b... Remove setlocale() calls around tag reading

Commits added to the branch:

  e6d8f1e... Avoid locale-sensitive field name reading for Ogg
  5294964... Use strncmp() when case is not a factor
  071e4b0... Use g_ascii_strcasecmp() for ID3v2.4 field names
  841800f... Remove setlocale() calls around tag reading